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* shared/bootcard.c, shared/main.c: Now call int c_rtems_main()
not main().
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a BSP (c4xsim) supporting the simulator included with gdb. This port
was done by Joel Sherrill and Jennifer Averett of OAR Corporation.
Also included with this port is a space/time optimization to eliminate
FP context switch management on CPUs without hardware or software FP.
An issue with this port was that sizeof(unsigned32) = sizeof(unsigned8)
on this CPU. This required addressing alignment checks and assumptions
as well as fixing code that assumed sizeof(unsigned32) == 4.
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boot_card() and main() into separate files to ease configuration
of other packages. This was a big step in the way to build TCL,
ncurses, and zlib for RTEMS.
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exceptions work on the pc386 BSP with i386-elf. This patch also
included changes to the i386-rtemself egcs configuration.
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> 5) rtems-rc-19990202-1.diff/reorg-install.sh
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> reorg-install.sh fixes a Makefile variable name clash of RTEMS
> configuration files and automake/autoconf standards.
> Until now, RTEMS used $(INSTALL) for install-if-change. Automake and
> autoconf use $(INSTALL) for a bsd-compatible install. As
> install-if-change and bsd-install are not compatible, I renamed all
> references to install-if-changed to $(INSTALL_CHANGED) and used
> $(INSTALL) for bsd-install (==automake/autoconf standard). When
> automake will be introduced install-if-change will probably be replaced
> by $(INSTALL) and therefore will slowly vanish. For the moment, this
> patch fixes a very nasty problem which prevents adding any automake file
> until now (There are still more).
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This problem should and likely was occurring with other BSPs. This is from
Chris' email:
I had a look in the psim bsp for the older snapshot I have and it looks
like you are using the `libbsp/shared/main.c' and this is known to work.
I have just built the powerpc tools, and compiled the bsp. I have not
added the linker command file patch so got the list of linker warnings.
It looks to me like a compiler bug. The `main' call is being inlined and
when that happens the special code to call `__eabi' is not being added
to the inlined version. I have attached a patch which places `main'
after `boot_card' and a call to main is now generated. I have not tested
it but it should work. I also include a dump of `boot_card' and `main'
showing the bug.
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code in each BSP's bspstart.c. These changes were:
+ confdefs.h now knows libio's semaphore requirements
+ shared/main.c now copies Configuration to BSP_Configuration
+ shared/main.c fills in the Cpu_table with default values
This removed the need for rtems_libio_config() and the constant
BSP_LIBIO_MAX_FDS in every BSP. Plus now the maximum number of open
files can now be set on the gcc command line.
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based on the GNU tools. This usually involved correcting the
type of bsp_start(), bsp_cleanup(), adjusting the start code to
call the right start routine (the shared boot_card()), and then
removing code from bsp_start() which was performed in the new
boot_card()/main() path.
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